Method of distributing current in electrodeposition process
AssigneeS & J Technologies, LLC
InventorsSammy Lee Adkisson, Samual Adam Adkisson, John Bougneit, Dale Lee Hughes
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Abstract
A method is provided for electrodepositing a coating a conductive workpiece. The method provides for individually switching on or off electrodes both interior to and exterior to the workpiece so as to control the deposition of the coating material on the interior surface and the exterior surface of the workpiece. Further, an electrode having insulating positioners can be utilized to provide for better centering of the electrode in the interior of the workpiece.
Claims17
A computer implemented method of controlling coating of a workpiece with a coating material in an electrodeposition process comprising:
- (a) accessing a recipe for the coating of the workpiece;
- (b) initiating the electrodeposition process by selectively switching on or off current to a set of electrodes through a switching system providing individual switching to each of the electrodes, wherein the switching on or off is selected in accordance with the recipe and at least one initial input;
- (c) after step (b), controlling the coating of the workpiece in accordance with the predetermined recipe by switching on or off current to the set of electrodes during the electrodeposition process;
- (d) monitoring current flow within the electrodeposition process to determine coating deposition during the electrodeposition process and switching on or off a portion of the electrodes to compensate for non-linear coating deposition rates determined from said monitoring;
- and
- (e) terminating the electrodeposition process based on predetermined criteria.
The process of step 12, wherein the initial input includes an initial temperature of the coating material.
Dependencies are inferred from the claim text.